Clinical thermometer.



PATENTED AUG. 2, 1904.

G W MEINECKE CLINICAL THERMOMETBR.

APPLIOATION FILED NOV. 19, 1003.

H0 MODEL.

c UIIIIIIIII 4mm WITNESSES:

ATTORNEY Urvrren STATES.

Patented August 2, 1904.

PATENT OFFICE.

CHRISTIAN WV. MEINECKE, OF JERSEY CITY, NEIV JERSEY, ASSIGNOR TOMEINECKE & COMPANY, OF NE\V YORK, N. Y., A CORPORATION OF NEIV JERSEY.

CLINICAL THERIVIOMETER.

SPECIFICATION forming part of Letters Patent No. 766,720, dated August2, 1904.

Application filed November 19, 1903. Serial No. 181,846. (No model.)

To It whom it may concern:

Be it known that I, CHRISTIAN IV. M111- NECKE, acitizen of the UnitedStates, residing at Jersey City, in the county of Hudson and State ofNew Jersey, have invented new and useful Improvements in ClinicalThermometers, of which the following is a specification.

In examining thermometers of this class the column of mercury is focusedor held so that IO the lens portion will make the column appearmagnified for easy reading. In shaking down the thermometer after a testto restore the mercury into the bulb, particularly if the hands of thenurse or physician or the stem 1 5 of the instrument is wet or slippery,the thermometer may fly out of the hand and become broken. By having thestem provided with a head adapted to gage the lens or focus and whichprevents slipping in shaking down the above objections are overcome anda practical device secured possessing advantages as set forth in thefollowing specification and claims and illustrated in the annexeddrawings, in which Figure 1 is a face elevation of a thermometer. Fig. 2is a longitudinal section of Fig. 1. Fig. 3 is a plan view of Fig. 1.Fig. at is a section along 4: 4, Fig. 1. Fig. 5 shows a modification.

The head being of one piece with or fused to the stem is secure, and nostrange matter can lodge between the stem and head. The head is shownwith a portion or angle 6 so located as to form a gage for focusing, and

3 5 when holdingthe thermometer with the thumb alongside rest or gage I)or the gage facing the physician or turned toward the user the lens ormagnifying portion common in these instruments is turned to magnify thecolumn 4 for inspection.

In addition to gaging the focus as above described an arrow (Z or pairof arrows can also be placed to point along the line which is to facethe user when viewing the column. This arrow or arrows can be placed atthe upper and lower portions of the stem, so as not to interfere withthe inspection or be clear of the graduation-lines.

In Fig. 3 the head is shown of what might be called triangular form, orapproximately 5 so, with rounded corners. The head of Fig.

5 might be called four-sided with round corners.

In this invention the stem of the thermometer is provided with ahead soshaped that the thermometer is prevented from rolling away when placedon its side. The stem of the thermometer (t is provided at its upper endwith a head 6, having rectilinear sides 0. These sides have roundedcorners to prevent 6O chipping of the head, and by avoiding sharp anglesaccumulation of impurities is prevented. The head also keeps the stemelevated when the thermometer is placed on its side, thus allowing thesame to be easily picked up 5 when wanted. The head also can beconveniently grasped in shaking the mercury down into the bulb of thethermometer when the same has been displaced or run up by use or testingof temperature. 7

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. A thermometer having a stem provided at its end portion with a headmade integral with the stem and having a flattened portion to preventrolling, said head being of such size as to prevent the stem slippingwhen shaking down the thermometer and of greater diameter orcross-section throughout than the stem so that when the thermometer islaid 30 down the head will hold the stem raised or at an incline toenable the same to be readily grasped.

2. A thermometer having a stem and a solid flattened head extendingthroughout at right 5 angles with respect to the length of the stem andsaid head provided with a sharp or angu- I said stem having arrows ormarks at opposite I lar portion having its apex in line with the ends ofand on the focusing-line.

prism-front so as to act as a focusing gage In testimony whereof I havehereunto set portion to aid in focusing the column of the l my hand inthe presence of two subscribing thermometer and prevent rolling.Witnesses.

3. A thermometer having a stem and a solid CHRISTIAN W. MEINECKE.flattened head extending throughout at right Witnesses: angles withrespect to the length of the stem W. O. HAUFF,

and said head provided with a focus-indicator, CHAs. E. POENSGEN.

